updated tests, fixed ios and macos headless to inappwebview conversion

example/integration_test/in_app_webview/main.dart

@@ -194,6 +194,12 @@ void main() {
         ].contains(defaultTargetPlatform);
 
   skippableGroup('InAppWebView', () {
+    setUpAll(() async {
+      if (!kIsWeb && defaultTargetPlatform == TargetPlatform.android) {
+        await InAppWebViewController.setWebContentsDebuggingEnabled(true);
+      }
+    });
+
     initialUrlRequest();
     setGetSettings();
     javascriptCodeEvaluation();

example/integration_test/in_app_webview/web_message.dart

@@ -121,7 +121,7 @@ void webMessage() {
               if (event.ports[0] != null) {
                   port = event.ports[0];
                   port.onmessage = function (event) {
-                      console.log(event.data);
+                      console.log(bufferToString(event.data));
                   };
               }
           }

example/integration_test/webview_flutter_test.dart

@@ -18,10 +18,6 @@ import 'tracing_controller/main.dart' as tracing_controller_tests;
 void main() {
   IntegrationTestWidgetsFlutterBinding.ensureInitialized();
 
-  if (!kIsWeb && defaultTargetPlatform == TargetPlatform.android) {
-    InAppWebViewController.setWebContentsDebuggingEnabled(true);
-  }
-
   WebView.debugLoggingSettings.usePrint = true;
   WebView.debugLoggingSettings.maxLogMessageLength = 7000;
   InAppBrowser.debugLoggingSettings.usePrint = true;

ios/Classes/HeadlessInAppWebView/HeadlessInAppWebView.swift

@@ -71,20 +71,26 @@ public class HeadlessInAppWebView : Disposable {
             view.alpha = 1.0
             // remove from parent
             view.removeFromSuperview()
-            dispose()
+            dispose(disposeWebView: false)
         }
         return newFlutterWebView
     }
     
-    public func dispose() {
+    public func dispose(disposeWebView: Bool) {
         channelDelegate?.dispose()
         channelDelegate = nil
         plugin?.headlessInAppWebViewManager?.webViews[id] = nil
+        if disposeWebView {
             flutterWebView?.dispose(removeFromSuperview: true)
+        }
         flutterWebView = nil
         plugin = nil
     }
     
+    public func dispose() {
+        dispose(disposeWebView: true)
+    }
+    
     deinit {
         debugPrint("HeadlessInAppWebView - dealloc")
         dispose()

macos/Classes/HeadlessInAppWebView/HeadlessInAppWebView.swift

@@ -72,21 +72,27 @@ public class HeadlessInAppWebView : Disposable {
             view.alphaValue = 1.0
             // remove from parent
             view.removeFromSuperview()
-            dispose()
+            dispose(disposeWebView: false)
         }
         return newFlutterWebView
     }
     
     
-    public func dispose() {
+    public func dispose(disposeWebView: Bool) {
         channelDelegate?.dispose()
         channelDelegate = nil
         plugin?.headlessInAppWebViewManager?.webViews[id] = nil
+        if disposeWebView {
             flutterWebView?.dispose(removeFromSuperview: true)
+        }
         flutterWebView = nil
         plugin = nil
     }
     
+    public func dispose() {
+        dispose(disposeWebView: true)
+    }
+    
     deinit {
         debugPrint("HeadlessInAppWebView - dealloc")
         dispose()